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Flocked medical instrument to be placed in the body, method of producing the medical instrument to be placed in the body and apparatus for producing the medical instrument to be placed in the body

Foreign code F110005621
File No. RX03P52WO
Posted date Sep 9, 2011
Country United States of America
Application number 09512006
Gazette No. 20090306599
Gazette No. 8360000
Date of filing Nov 27, 2006
Gazette Date Dec 10, 2009
Gazette Date Jan 29, 2013
International application number JP2006323621
International publication number WO2007061100
Date of international filing Nov 27, 2006
Date of international publication May 31, 2007
Priority data
  • P2005-342740 (Nov 28, 2005) JP
  • 2006WO-JP323621 (Nov 27, 2006) WO
Title Flocked medical instrument to be placed in the body, method of producing the medical instrument to be placed in the body and apparatus for producing the medical instrument to be placed in the body
Abstract (US8360000)
The present invention provides a percutaneous terminal having a substrate thereof flocked with fibers having bio-affinity, and thereby being able to adhere tightly to a living body, a medical instrument to be placed in the body, and a production method and a production apparatus of the percutaneous terminal and the medical instrument to be placed in the body.
The percutaneous terminal according to the present invention is one which the surface of the substrate is flocked with bio-affinitive short fibers (e.g. hydroxyapatite complex particles), therefore the bio-affinitive short fibers are risen perpendicular to or substantially perpendicular to the surface of the substrate.
As a result, an area of the bio-affinitive short fibers coating a unit area of the substrate of the percutaneous terminal to the unit area of the percutaneous terminal substrate is considerably elevated and, in its turn, the adhesiveness of the percutaneous terminal to biological tissues is improved.
Thus, it is possible to stably fix to the living body a medical device such as a catheter or the like which has the percutaneous terminal.
The medical instrument according to the present invention is also flocked with the short fibers as described above, therefore it is possible to stably fix to the living body the medical instrument to be placed in the body.
Scope of claims [claim1]
1. An apparatus for producing a percutaneous terminal in which a surface of a substrate of the percutaneous terminal is flocked with bio-affinitive short fibers, the apparatus comprising: a first electrode plate and a second electrode plate; and
a rotation supporting section which includes a supporting section for supporting the substrate of the percutaneous terminal and a rotating section for rotating the supporting section, the second electrode plate being arranged under the first electrode plate, where a direction of gravity is denoted as downwards;
the second electrode plate being arranged such that the bio-affinitive short fibers are mountable;
the rotation supporting section being arranged so that the substrate of the percutaneous terminal, which substrate is supported by the supporting section is to be arranged between the first electrode plate and the second electrode plate; and
the supporting section being electrically connected with the first electrode plate, and arranged electrically connectable with the substrate of the percutaneous substrate, the supporting section being a bar, an angle formed by a longitudinal direction of the supporting section and each of the first electrode plate and the second electrode plate being more than 0 deg. however less than 90 deg. .
[claim2]
2. The apparatus as set forth in claim 1, further comprising moistening means for moistening the bio-affinitive short fibers.
[claim3]
3. The apparatus as set forth in claim 1, further comprising: a container for containing at least the first electrode plate, the second electrode plate and the supporting section; and
a humidity controlling section for controlling humidity inside the container.
[claim4]
4. An apparatus for producing a medical instrument to be placed in the body in which a surface of a substrate of the medical instrument to be placed in the body is flocked with bio-affinitive short fibers, the apparatus comprising: a first electrode plate and a second electrode plate; and
a rotation supporting section which includes a supporting section for supporting the substrate of the medical instrument to be placed in the body and a rotating section for rotating the supporting section,
the second electrode plate being arranged under the first electrode plate, where a direction of gravity is denoted as downwards, the second electrode plate being arranged such that the bio-affinitive short fibers are mountable, the rotation supporting section being arranged so that the substrate of the medical instrument to be placed in the body, which substrate is supported by the supporting section is to be arranged between the first electrode plate and the second electrode plate,
the supporting section being electrically connected with the first electrode plate, and arranged electrically connectable with the substrate of the percutaneous substrate, the supporting section being a bar, an angle formed by a longitudinal direction of the supporting section and each of the first electrode plate and the second electrode plate being more than 0 deg. however less than 90 deg. .
[claim5]
5. The apparatus as set forth in claim 4, further comprising humidifying means for humidifying the bio-affinitive short fibers.
[claim6]
6. The apparatus as set forth in claim 4a container for containing at least the first electrode plate, the second electrode plate and the supporting section; and
a humidity controlling section for controlling a humidity inside the container.
  • Inventor, and Inventor/Applicant
  • FURUZONO TSUTOMU
  • YASUDA SHOJI
  • IMOTO TOSHIYUKI
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
IPC(International Patent Classification)
U.S. Cl./(Sub)
  • A61L029/10R
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